GPT code in a lot of critical path systems wouldn’t pass code review, not probably integrate well enough into any bespoke realtime system. It seems to be more useful in providing second opinions on high level decisions to me, but still not useful enough to use.
Maybe it could help with some light Lua or C# gameplay scripting, although I think co-pilot works much better. But all that doesn’t matter as due to licensing, the AAA industry still generally can’t use any of these generative AIs for code. Owning and being able to copyright all code and assets in a game is normally a requirement set by large publishers.
To conclude, my experience is indeed very different from yours.